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 | Acesso ao texto completo restrito à biblioteca da Embrapa Acre. Para informações adicionais entre em contato com cpafac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Acre; Embrapa Gado de Corte. |
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Data corrente: |
09/10/2018 |
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Data da última atualização: |
17/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ASSIS, G. M. L. de; BEBER, P. M.; MIQUELONI, D. P.; RESENDE, R. M. S. |
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Afiliação: |
GISELLE MARIANO LESSA DE ASSIS, CPAF-AC; Paulo M. Beber, Universidade Federal do Acre - UFAC; Daniela P. Miqueloni, Universidade Federal do Acre - UFAC; ROSANGELA MARIA SIMEAO, CNPGC. |
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Título: |
Identification of stylo lines with potential to compose mixed pastures with higher productivity. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Grass Forage Science, v. 73, p. 897-906, 2018. |
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DOI: |
10.1111/gfs.12383 |
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Idioma: |
Inglês |
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Conteúdo: |
Forage legumes from the genus Stylosanthes are frequently used as pasture cover crops with positive effects in controlling weeds, soil fertility and crop yield while providing livestock feed and additional income for farmers through seed production.
Stylosanthes guianensis is native to South America and extensively grown worldwide. Therefore, efforts to improve this species may help the sustainability of livestock production in pasture areas managed with this legume. We evaluated 12 sister lines
spread through seeds under clippings in the western Amazon region, Brazil. The results were analysed using the methodology of mixed models. Five sister lines mixed with the grass Brachiaria brizantha were evaluated under continuous grazing
for two consecutive years. We estimated the genetic and phenotypic parameters of the forage legume and then identified and validated, under grazing, the sister lines most promising to be used in an area of the western Brazilian Amazon. Total drymatter
yield, soil coverage, height before clipping, height after clipping and seed production showed low‐to‐moderate broad‐sense heritability (0.1?0.5), contrasting with reduced genetic variability for the characters associated with nutritive value. The S. guianensis lines had, on average, 278 g/kg of crude protein in the dry matter of the leaves and 200 g/kg in the stems, suggesting that the use of this species may help to overcome the low protein content of tropical pastures. There are promising stylo lines that can be used in mixed pastures in humid tropical regions. MenosForage legumes from the genus Stylosanthes are frequently used as pasture cover crops with positive effects in controlling weeds, soil fertility and crop yield while providing livestock feed and additional income for farmers through seed production.
Stylosanthes guianensis is native to South America and extensively grown worldwide. Therefore, efforts to improve this species may help the sustainability of livestock production in pasture areas managed with this legume. We evaluated 12 sister lines
spread through seeds under clippings in the western Amazon region, Brazil. The results were analysed using the methodology of mixed models. Five sister lines mixed with the grass Brachiaria brizantha were evaluated under continuous grazing
for two consecutive years. We estimated the genetic and phenotypic parameters of the forage legume and then identified and validated, under grazing, the sister lines most promising to be used in an area of the western Brazilian Amazon. Total drymatter
yield, soil coverage, height before clipping, height after clipping and seed production showed low‐to‐moderate broad‐sense heritability (0.1?0.5), contrasting with reduced genetic variability for the characters associated with nutritive value. The S. guianensis lines had, on average, 278 g/kg of crude protein in the dry matter of the leaves and 200 g/kg in the stems, suggesting that the use of this species may help to overcome the low protein content of tropical pastures. There are p... Mostrar Tudo |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Embrapa Acre; Fazenda Manjerona; Fitomejoramiento; Ganado de carne; Leguminosas forrajeras; Nutrición animal; Pastoreo mixto; Pastos forrajeros; Raza de bovinos Nelore; Rendimiento de los cultivos; Rio Branco (AC); Senador Guiomard (AC); Tropical; Variación genética; Western Amazon. |
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Thesagro: |
Brachiaria Brizantha; Campo Experimental; Capim Brachiaria; Características Agronômicas; Estilosante; Gado de Corte; Gado Nelore; Gramínea Forrageira; Leguminosa Forrageira; Melhoramento Genético Vegetal; Nutrição Animal; Pastagem Consorciada; Produtividade; Stylosanthes Guianensis; Variação Genética. |
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Thesaurus Nal: |
Agronomic traits; Animal nutrition; Beef cattle; Chemical composition; Crop yield; Forage grasses; Forage legumes; Forage production; Genetic variation; Legumes; Mixed grazing; Nellore; Plant breeding; Urochloa brizantha. |
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Categoria do assunto: |
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G Melhoramento Genético |
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Marc: |
LEADER 03684naa a2200733 a 4500
001 2101619
005 2018-12-17
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1111/gfs.12383$2DOI
100 1 $aASSIS, G. M. L. de
245 $aIdentification of stylo lines with potential to compose mixed pastures with higher productivity.$h[electronic resource]
260 $c2018
520 $aForage legumes from the genus Stylosanthes are frequently used as pasture cover crops with positive effects in controlling weeds, soil fertility and crop yield while providing livestock feed and additional income for farmers through seed production. Stylosanthes guianensis is native to South America and extensively grown worldwide. Therefore, efforts to improve this species may help the sustainability of livestock production in pasture areas managed with this legume. We evaluated 12 sister lines spread through seeds under clippings in the western Amazon region, Brazil. The results were analysed using the methodology of mixed models. Five sister lines mixed with the grass Brachiaria brizantha were evaluated under continuous grazing for two consecutive years. We estimated the genetic and phenotypic parameters of the forage legume and then identified and validated, under grazing, the sister lines most promising to be used in an area of the western Brazilian Amazon. Total drymatter yield, soil coverage, height before clipping, height after clipping and seed production showed low‐to‐moderate broad‐sense heritability (0.1?0.5), contrasting with reduced genetic variability for the characters associated with nutritive value. The S. guianensis lines had, on average, 278 g/kg of crude protein in the dry matter of the leaves and 200 g/kg in the stems, suggesting that the use of this species may help to overcome the low protein content of tropical pastures. There are promising stylo lines that can be used in mixed pastures in humid tropical regions.
650 $aAgronomic traits
650 $aAnimal nutrition
650 $aBeef cattle
650 $aChemical composition
650 $aCrop yield
650 $aForage grasses
650 $aForage legumes
650 $aForage production
650 $aGenetic variation
650 $aLegumes
650 $aMixed grazing
650 $aNellore
650 $aPlant breeding
650 $aUrochloa brizantha
650 $aBrachiaria Brizantha
650 $aCampo Experimental
650 $aCapim Brachiaria
650 $aCaracterísticas Agronômicas
650 $aEstilosante
650 $aGado de Corte
650 $aGado Nelore
650 $aGramínea Forrageira
650 $aLeguminosa Forrageira
650 $aMelhoramento Genético Vegetal
650 $aNutrição Animal
650 $aPastagem Consorciada
650 $aProdutividade
650 $aStylosanthes Guianensis
650 $aVariação Genética
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aEmbrapa Acre
653 $aFazenda Manjerona
653 $aFitomejoramiento
653 $aGanado de carne
653 $aLeguminosas forrajeras
653 $aNutrición animal
653 $aPastoreo mixto
653 $aPastos forrajeros
653 $aRaza de bovinos Nelore
653 $aRendimiento de los cultivos
653 $aRio Branco (AC)
653 $aSenador Guiomard (AC)
653 $aTropical
653 $aVariación genética
653 $aWestern Amazon
700 1 $aBEBER, P. M.
700 1 $aMIQUELONI, D. P.
700 1 $aRESENDE, R. M. S.
773 $tGrass Forage Science$gv. 73, p. 897-906, 2018.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
12/02/1993 |
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Data da última atualização: |
16/08/2022 |
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Autoria: |
FURLONG, J.; VILAS NOVAS, J. C.; VARDOSO FILHO, J. B. |
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Afiliação: |
CNPGL. |
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Título: |
Parasitoses dos bovinos na regiao da Zona da Mata de Minas Gerais. 2.Incidencia estacional de nematodeos pulmonares. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v. 20, n. 12, p. 1409-1413, 1985. |
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Idioma: |
Português |
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Conteúdo: |
RESUMO - Para estudar a dinâmica populacional de larvas infectantes de Dictyocaulus viviparus na pastagem, foram realizadas necropsias mensais de dois bezerros traçadores, à razão de dois por mês, no período de outubro de 1980 a setembro de 1982, totalizando 48 animais. As condições climáticas da região permitiram o desenvolvimento e a sobrevivência de larvas na pastagem durante o ano todo, mas a maior incidência ocorreu durante o o inverno, quando média da temperatura mínima foi de 11 °C. As infecções sofridas pelos bezerros a partir do início do outono 'aumentaram a incidência de larvas infectantS no inverno. ABSTRACT - In order to study the seasonal incidence of larvae of Dictyocaulus viviparus in pastures, during the period of October 1980 until September 1982, a total of 46 tracercalves were necropsied, at the rate of two per month. The climate of the region allowed development and survival of larvae throughout the year but the greatest incidence occurred during winter, when the average of minimum temperatura was 11 C. The rnost significant factor was Iow temperatura. Larvae ingested in autumm caused the outbreak of infective Iarvae in pastures in winter. |
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Palavras-Chave: |
Brasil; Minas Gerais; Zona da Mata. |
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Thesagro: |
Bovino; Parasitose. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/590370/1/Parasitoses-dos-bovinos-na-regiao-da-zona-da-mata-de-Minas-Gerais.pdf
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Marc: |
LEADER 01838naa a2200205 a 4500
001 1590370
005 2022-08-16
008 1985 bl uuuu u00u1 u #d
100 1 $aFURLONG, J.
245 $aParasitoses dos bovinos na regiao da Zona da Mata de Minas Gerais. 2.Incidencia estacional de nematodeos pulmonares.$h[electronic resource]
260 $c1985
520 $aRESUMO - Para estudar a dinâmica populacional de larvas infectantes de Dictyocaulus viviparus na pastagem, foram realizadas necropsias mensais de dois bezerros traçadores, à razão de dois por mês, no período de outubro de 1980 a setembro de 1982, totalizando 48 animais. As condições climáticas da região permitiram o desenvolvimento e a sobrevivência de larvas na pastagem durante o ano todo, mas a maior incidência ocorreu durante o o inverno, quando média da temperatura mínima foi de 11 °C. As infecções sofridas pelos bezerros a partir do início do outono 'aumentaram a incidência de larvas infectantS no inverno. ABSTRACT - In order to study the seasonal incidence of larvae of Dictyocaulus viviparus in pastures, during the period of October 1980 until September 1982, a total of 46 tracercalves were necropsied, at the rate of two per month. The climate of the region allowed development and survival of larvae throughout the year but the greatest incidence occurred during winter, when the average of minimum temperatura was 11 C. The rnost significant factor was Iow temperatura. Larvae ingested in autumm caused the outbreak of infective Iarvae in pastures in winter.
650 $aBovino
650 $aParasitose
653 $aBrasil
653 $aMinas Gerais
653 $aZona da Mata
700 1 $aVILAS NOVAS, J. C.
700 1 $aVARDOSO FILHO, J. B.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv. 20, n. 12, p. 1409-1413, 1985.
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